refactoring

server/opml.go

@@ -0,0 +1,42 @@
+package server
+
+import (
+	"encoding/xml"
+	"io"
+)
+
+type opml struct {
+	XMLName  xml.Name  `xml:"opml"`
+	Version  string    `xml:"version,attr"`
+	Outlines []outline `xml:"body>outline"`
+}
+
+type outline struct {
+	Type        string    `xml:"type,attr,omitempty"`
+	Title       string    `xml:"text,attr"`
+	FeedURL     string    `xml:"xmlUrl,attr,omitempty"`
+	SiteURL     string    `xml:"htmlUrl,attr,omitempty"`
+	Description string    `xml:"description,attr,omitempty"`
+	Outlines    []outline `xml:"outline,omitempty"`
+}
+
+func (o outline) AllFeeds() []outline {
+	result := make([]outline, 0)
+	for _, sub := range o.Outlines {
+		if sub.Type == "rss" {
+			result = append(result, sub)
+		} else {
+			result = append(result, sub.AllFeeds()...)
+		}
+	}
+	return result
+}
+
+func parseOPML(r io.Reader) (*opml, error) {
+	feeds := new(opml)
+	decoder := xml.NewDecoder(r)
+	decoder.Entity = xml.HTMLEntity
+	decoder.Strict = false
+	err := decoder.Decode(&feeds)
+	return feeds, err
+}